Chemistry 9701/52 Oct Nov 2011 | Cambridge AS Level Past Papers With Mark Scheme

1. Reactions of magnesium chloride, aluminum chloride, and silicon tetrachloride with water, producing hydroxides, oxides, and solubility observations.
2. Titration of chloride ions in meat products with silver nitrate, calculating moles and writing ionic equations for sodium and potassium chlorides.
3. Iodination of benzene, enthalpy change calculation for I₂, and oxidation state changes in iodine and nitrogen.
4. Nitrogen oxide catalysis in acid rain formation, with equations and role in environmental processes.
5. Transition metal ion complex formation, Cu²⁺ electronic configuration, orbital splitting, and ammonia's effect on copper solutions.
6. Curcumin structure and reactions with bromine and KMnO₄, including functional group analysis and product identification.